5661031013 has 16 divisors (see below), whose sum is σ = 6199222272. Its totient is φ = 5126814000.

The previous prime is 5661030967. The next prime is 5661031037. The reversal of 5661031013 is 3101301665.

It is not a de Polignac number, because 5661031013 - 2⁸ = 5661030757 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5661031073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5711948 + ... + 5712938.

It is an arithmetic number, because the mean of its divisors is an integer number (387451392).

Almost surely, 2^5661031013 is an apocalyptic number.

It is an amenable number.

5661031013 is a deficient number, since it is larger than the sum of its proper divisors (538191259).

5661031013 is a wasteful number, since it uses less digits than its factorization.

5661031013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2456.

The product of its (nonzero) digits is 1620, while the sum is 26.

The square root of 5661031013 is about 75239.8233185060. The cubic root of 5661031013 is about 1782.2358610827.

Adding to 5661031013 its reverse (3101301665), we get a palindrome (8762332678).

The spelling of 5661031013 in words is "five billion, six hundred sixty-one million, thirty-one thousand, thirteen".